Read the dictionary definition of clandestine. All definitions for this word.
1. conducted with or marked by hidden aims or methods
1. clandestine intelligence operations
2. cloak-and-dagger activities behind enemy lines
3. hole-and-corner intrigue
4. secret missions
5. a secret agent
6. secret sales of arms
7. surreptitious mobilization of troops
8. an undercover investigation
9. underground resistance